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5-nitro-2-pyridinethiol

Also known as: 5-Nitro-2-pyridinethiol, 5-Nitropyridine-2-thiol, 2-Mercapto-5-nitropyridine, 5-Nitro-2-pyridyl mercaptan, 5-Nitro-2-pyridineethione, 5-Nitro-1H-pyridine-2-thione, Mercaptonitropyridine, 5-Nitro-2-thiopyridine, 5-Nitro-2-pyridyl Mercaptan

5-nitro-2-pyridinethiol (CAS 2127-09-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N2O2S and a molecular weight of 156.16200 g/mol. Key properties include a melting point of 188°C, a boiling point of 220ºC at 760mmHg, a density of 1.48g/cm3 and a flash point of 86.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2127-09-5
Jingsj CID
J-1412356-9
Molecular Formula
C5H4N2O2S
Molecular Weight
156.16200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point188°C
Boiling Point220ºC at 760mmHg
Density1.48g/cm3
Flash Point86.9ºC
Exact Mass155.99900
PSA97.51000
LogP1.80170
Vapor Pressure0.116mmHg at 25°C
Refractive Index1.678

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-nitro-2-pyridinethiol?

The CAS number of 5-nitro-2-pyridinethiol is 2127-09-5.

What are the molecular formula and molecular weight of 5-nitro-2-pyridinethiol?

5-nitro-2-pyridinethiol has molecular formula C5H4N2O2S and molecular weight 156.16200 g/mol.

What are the upstream and downstream products of 5-nitro-2-pyridinethiol?

For 5-nitro-2-pyridinethiol, Upstream Products: 2-Bromo-5-nitropyridine, Methanol, Ethanol; Downstream Products: 5-Nitropyridine-2-sulfonic acid, 2-Amino-5-nitropyridine, 2-(Methylthio)-5-nitropyridine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5-nitro-2-pyridinethiol (CAS 2127-09-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1412356-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.